Improvement in journals and bearings



G. A. CHAPMAN, Journal and Bearings.

N0. mljl Y I PatentedApril6,l875.

gl ulllm'f//amlllluni rTEn STATES PATENT EErcE.

IMPROVEMENT IN JOURNALS N BEARINGS.

Specification forming part of Letters Patent No. 161,665, dated April 6,1875 application led September 25, 1874.

This invention relates to new and usefulv improvements in machines formanufacturing flock, as will be hereinafter more fully set forth anddescribed.

In the accompanying drawing, Figure lis a vertical longitudinal sectionof the machine, taken on the line x az, Fig. 2. Fig. 2 is a top view ofthe machine as when completed.

Similar letters of reference indicate corresponding parts.

It is well known that what is called flock in commerce is manufacturedfrom pieces or scraps of woolen fabrics, either textile, felted, orfibrous. For this purpose old clothes are used to a great extent, beingseparated into small fragments, by a machine provided for the purpose,before being introduced into the ock machine. The main features of theiiockmachines in common use are the shell and the cylinder, the formerrepresenting a frustum of a hollow cone and the latter the frustum of asolid cone, revolving within the shell on a horizontal shaft, both beingprovided with a series of cutters or knives spirally arranged, so thatthey work together similar to the blades of a pair of shears.

A represents the shell. B is the cylinder. C is the shaft. The heads ofthe screws g are placed at short distances apart, in the spaces betweenthe knives, so that the knives will be firmly held. When it is necessaryto raise the knives, as they wear off, the screws are loosened andstrips of metal are introduced into the grooves, and then the screws areagain turned down. The rags are fed into the hopper H and the Hock isdischarged from the aperture I. (See Fig. l.) When the cylinder isrunning and at work there is always a heavy back pressure, and thefriction on the end of the shaft is very great, no suitable means havingbeen provided for lubricating that point and taking up the play or slackoccasioned by the wear; and, more than all, preventing longitudinalvibration in either direction. Much inconvenience and damage has beenthe con; sequence. To provide for these difficulties I screw onto theend of the shaft a chambered sleeve, J, which holds the shoulderedtubular screw K, which latter works through the sta-l tionary nut LWithin the screw is a sliding pin, m, the head a of which bears againstthe end of the shaft, as seen in the sectional Fig. 4. O is anoil-chamber in the sleeve J. Oil is introduced into this chamber throughthe orifice p, which is closed by a small screw, as seen in the drawing.rIhe sleeve fits tightly against the shoulder q of the shaft, and theshoulder or collar on the end of the screw K closes tightly the otherend of the sleeve, so' that, when oil is once introduced into thechamber, it cannot escape; consequently, the end of the shaft, beingwithin the chamber, runs in oil. R is a little hand-wheel on the screwK. S is a screw, which works in the vouter end of the screw K, and itsend bears 'I is a small against the end of the pin m. hand-wheel, bywhich this screw S is turned. The nut L is held stationary by thebracket U. (See Fig. l.) The nut L is allowed some vertical play in thebracket as a provision for the wear of the journal-box or journal of theshaft. V W are jam-nut levers to hold those screws in position. By thisarrangement it will be seen that the sleeve .I revolves with the shaft,and around the tubular screw K. The cylinder is consequently held bythis screw K and prevented from working longitudinally in eitherdirection; while, by means of the small screw S, the cylinder isadjusted to cut line or coarse flock, as may be desired. The frictioncaused by the back pressure of shaft is against the head of the pin m,and, both being in the closed oil-chamber O, that frictional point isalways kept well lubricated. Wh en 'the cylinder is running without feedits tendency is to work forward or in the opposite direction, but thisis prevented by the collar on the end of the tubular screw K.

By these improvements I overcome very serious objections to theflock-machine as now used. By my mode of inserting and fastening theknives, and in providing for the lateral vibration of the cylinder andits adjustment in the shell, the machine is made much,

more perfect and effective than it has heretofore been.

Having thus described mynvention, I claim as new and desire to secure byLetters Patent- 1. In combina-tion with the shaft of a ock ing-machine,the sleeve J, shouldered screw K, and stationary nut L, substantially asshown and described.

2. The combination of the sleeve J, screwT K, pin m, with the stationarynut L, and screw S, substantially as and for the purpose described.

GEO. A. CHAPMAN.

Witnesses:

T. B. MosHER, ALEX. F. ROBERTS.

